Calcium Manganese Titanium oxide

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

07 March 2017 to 08 May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Deviations:

no

GLP compliance:

yes

Type of method:

flask method

Key result

Water solubility:

0.008 g/L

Conc. based on:

test mat.

Temp.:

20 °C

pH:

7

Details on results:

The test substance was stable in the water solution, with no obvious reaction observed.

The results of the calibration curve for the standard are presented in the table below:

Solutions for calibration curve	Conc. of standard solution (mg/L)	Intensity of standard solution
STD1	1.00	464414.22
STD2	2.00	993498.58
STD3	3.00	1568156.09
STD4	4.00	2105887.33
STD5	5.00	2615996.64

Calibration curve: y = 530775.97x - 35551.09 (r = 0.9996)

The water solubility test results are presented in the table below:

	20 ± 0.5°C, pH = 7.093
	Intensity	Conc. (ppm)	Solubility (g/L)	Mean solubility (g/L)
Day 3-1	1364800.85	2.64	0.00791	0.00790
Day 3-2	1349532.93	2.61	0.00783
Day 2-1	1356609.71	2.62	0.00787
Day 2-2	1361138.34	2.63	0.00789
Day 1-1	1367221.66	2.64	0.00793
Day 1-2	1371311.88	2.65	0.00795

Conclusions:

The water solubility was determined to be 0.0079 g/L at 20±0.5°C and pH 7.015.

Executive summary:

The determination of the water solubility of the test item was carried out using the flask method, in accordance with OECD 105.

The water solubility was determined to be 0.0079 g/L at 20±0.5 °C and pH 7.015.

Description of key information

0.0079 g/L; OECD 105; Chang, M (2017)

Key value for chemical safety assessment

Water solubility:

0.008 g/L

at the temperature of:

20 °C